Means for attaching axle-boxes.



EL J. SPKHR.

MEANS FOR ATTACHING AXLE BOXES.

APPLICATION FILED NOV. 2, 1908.

941,822. Patented Nov. 30, 1909.

UNITED STATES PATENT OFFICE.

ERNST JULIUS SPAI-IR, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO OTTOSEMLER, AND EMIL BOI-IRMANN, OF NEW YORK, N. Y.

MEANS FOR ATTACI-IING AXLE-BOXES.

To all whom it may concern:

Be it known that I, ERNST JULIUS SIliHR, a subject of the Emperor ofGermany, residing at New York, in the county of New York and State ofNew York, have invented certain new and useful Improven'ients in Meansfor Attaching Axle-Boxes, of which the following is a specification.

The present invention relates to axle boxes and particularly to meansfor attaching said axle boxes to the journal of an axle.

The object of my invention is to provide a construction that will allowof the axle box being securely attached to the journal of an axle andcapable of being readily removed therefrom.

In order to make my invention clear the same is illustrated in theaccompanying drawing in which similar reference characters denotecorresponding parts and in which- Figure 1 is a longitudinal section ofthe axle box as attached to the journal of the axle; Fig. 2 is a crosssection on line 22 of Fig. 1; Fig. 3 is a longitudinal section of theaxle box removed from the journal; Fig. 4: is a cross section on line tlof Fig. 1; Fig. 5 shows the free end of the journal with the safety lockthereon; Fig. 6 shows a plan view of the inner end of the journalcarrying the lubricating chamber, and Fig. 7 shows a longitudinalsection of the outer end of the axle box and of the journal in enlargedscale.

In the drawing, 1 is the axle of a carriage, motor or railroad car and 2the journal part thereof adapted to carry the wheel 3 marked by dottedlines (Fig. 1). Rigidly mounted on the axle 1 and surrounding theenlarged innerend l of the journal 2 is a cylindrical cup or box 5 whichis open at one side and which serves as a lubricating chamber.

Stationarily secured upon the inner end 4 of the journal is a bushing 6,upon which are loosely mounted disks 7, 7 containing a ball bearing 8between themselves. The inner disk 7 is rigidly secured to the innerwall of the box 5, while the outer disk 7 is capable of revolving and issuitably guided to constantly remain in contact with the ball bearing 8.The latter disk 7 is provided on its face surface with notches 9. Thecup is extended laterally beyond the disk 7 and adapted to receive theinner end of the axle Specification of Letters Patent.

Application filed November 2, 1908.

Patented Nov. 30, 1909. Serial N 0. 460,730.

box which consists of a sleeve 10, the inner end 11 of which is enlargedto closely fit in the cup 5. This enlarged end 11 is provided with anannular groove 12 and at its rear surface with noses l1, 11 (Fig. 3)which are adapted to engage the notches 9 in the inner rotary disk 7 ofthe ball bearing.

The box 5 is provided on its circumference with an opening 18 and hashinged to it at 14 a lid 15 for the said opening. Projecting from saidlid is a catch 16 that upon the closure of the former will engage theannular groove 12 or the axle box and secure the latter upon thejournal.

In the bottom of the annular groove perforations 17 are provided,through which the lubricating medium will be allowed to pass to thebearing surfaces of the axle box and axle. To facilitate the uniformdistribution of the lubricating medium the bear ing surface of the axlebox has channels or grooves 18 and the axle a longitudinal groove 19, inwhich a plate spring 20 and a strip 21 of rubber are contained. Thespring and rubber will during the revolution of the axle box cause thelubricating medium accumulated in the groove 19 to be pressed outward tocome between the bearing surfaces.

The axle box is provided with wedgeshaped keys 22 for keying the hub ofthe wheel 3 to the axle box.

In addition to the above-named lock formed by the catch 16 and groove 12another safety lock is provided in the end of the journal 2. The reducedportion of the outer end of the journal is provided with a centrallongitudinal slot 23 and a cross pin 24. A bar 25 provided with alongitudinal recess 26 is slidably and rotatively engaged around saidpin in such a manner that when in operation the bar, upon being turnedcrosswise to the axis of the journal, will lock the axle box upon thejournal and prevent its removal when the catch 16 by the lifting of thelid 15 is disengaged from the annular groove 12 'of the axle box. Tothis end the outer end of the axle box is formed inside with a shoulder27 and is adapted to receive a washer 28 fitting around the reduced endof the journal. The bushing 29 is provided with longitudinal recesses 30that, when in proper position, register with the slot 23 in the journal.It will be seen that in the position shown in Fig. 7 the locking barextending crosswise to the axis of the ournal will project through therecesses 23 and of the journal and the bushing, and thereby lock theaxle box upon the journal. Re movably secured in the open end of the boxand inclosing the lock in the free end of the journal is a cup whichconsists of a cylindrical portion 31 adapted to screw into the axle box,and a cup-shaped lid 32 hinged thereto and to be locked by a spring lock33. Access to the safety lock 25 can be had by merely swinging open thelid 32.

The lid 15 may be provided with a spring catch 34 to engage an eye 35 onthe cup 5 so as to lock the lid in closed position.

l/Vhat I claim and desire to secure by Letters Patent is:

The combination with an axle, of a cup secured thereto and provided withan opening in one of its walls, a bearing member rotatively secured insaid cup and formed with spaced rece ses, an axle box rotatively mountedon said axle and provided with an annular groove near its inner end andextending into said cup, projections on said axle box adapted to projectinto the spaced recesses to couple the bearing member and the axle boxtogether, and a hinged locking member having a portion arranged toproject through the opening of the cup into the annular recess of theaxle box to prevent axial movement of the latter.

In testimony whereof I aflix my signature in presence of two witnesses.

ERNST JULIUS sPAHR.

itnesses O'r'ro SEMLER, EMIL BOHRMANN.

